Specification: Material: Quality Copper wire Wire Diameter: 0.30mm, 0.25mm, 0.20mm Weight / spool: 3 kg, 5 kg, 7 kg, 15 kg, 20 kg Tensile strength: 1000 N / mm2, 900 N / mm2, 500 N / mm2, 450 N / mm2, N / mm2 Usage: Electrical, light industry, machinery, building industry, national defence industry Copper Scrap is important sources of raw materials. All kinds of it can be recycled